GHK-Cu vs SNAP-8
A side-by-side research comparison of GHK-Cu and SNAP-8 across mechanism, dosing, half-life, benefits, side effects and research status.
Comparison table
| Attribute | GHK-Cu | SNAP-8 |
|---|---|---|
| Full name | Copper Peptide GHK-Cu (Glycyl-Histidyl-Lysine Copper) | SNAP-8 (Acetyl Octapeptide-3) |
| Category | Skin & Anti-Aging | Skin & Anti-Aging |
| Status | Research compound | Research compound |
| Mechanism | Copper delivery enhances antioxidant enzyme activity (SOD), stimulates collagen and glycosaminoglycan synthesis, promotes stem cell activation, and modulates gene expression. | More effectively competes with SNAP-25 for SNARE complex incorporation due to longer sequence, providing greater vesicle-membrane fusion inhibition. |
| Molecular weight | 403.93 Da | 1,075 Da |
| Half-life | ~2-4 hours | 8-14 hours (topical) |
| Bioavailability | Topical: local; Injectable: ~90% subcutaneous | Moderate (topical) |
| Typical dose | 1-3 mg topical · 200-500 mcg injectable | 3-10% solution |
| Frequency | Daily (topical) · 3x/week (injectable) | 2x daily |
| Route | Topical cream/serum or subcutaneous injection | Topical |
GHK-Cu reported benefits
- Collagen and elastin synthesis
- Wound healing acceleration
- Skin tightening and remodeling
- Hair follicle stimulation
- Antioxidant protection
SNAP-8 reported benefits
- Superior to argireline
- Deeper wrinkle reduction
- Prevents expression lines
- Good skin penetration
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Research and educational reference only. Not medical advice.